APA (7th ed.) Citation

Dowd, J. J. (1951). Estimate of known recoverable reserves of coking coal in Pike County, Ky. U.S. Department of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Dowd, James J. Estimate of Known Recoverable Reserves of Coking Coal in Pike County, Ky. [Washington, D.C.]: U.S. Department of the Interior, Bureau of Mines, 1951.

MLA (9th ed.) Citation

Dowd, James J. Estimate of Known Recoverable Reserves of Coking Coal in Pike County, Ky. U.S. Department of the Interior, Bureau of Mines, 1951.